Carcinogenesis

**Definition:** The origin, production or development of cancer through genotypic and phenotypic changes which upset the normal balance between cell proliferation and cell death. Carcinogenesis generally requires a constellation of steps, which may occur quickly or over a period of many years.

**Tree numbers:** - C04.697.098 - C23.550.727.098

**Synonyms:** - Oncogenesis - Tumorigenesis